_data_end
t = _data_end(Buf(c), (int) SizePrev(c, v));
end = _data_end(Buf(c), BufSize(c));
end = _data_end(LineBuf(c, Y(f)), Xmax(f));
char *v = _data_end(vbeg, Xmax(f));
vend = _data_end(v, Xmax(f) - X(f));
pend = _data_end(p, Xmax(f));
vend = _data_end(v, Xmax(f));
return (v == _data_end(v, Xmax(f))); /* check for empty line */
(void) waddnstr(w, v, (int)(_data_end(v, (int)(t - v)) - v));
if ((n = (int) (_data_end(v, xmax) - v)) != 0) {
char * vend = _data_end(Buf(f), BufSize(f));
char * vend = _data_end(Buf(f), BufSize(f));
extern char * _data_end(char *, int);